Sufficient, archaically (4)
I believe the answer is:
enow
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">sufficient archaically</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for enow that I've seen before include "Old enough" , "up in Scotland" , "adequate" , "a moment ago" , "Enough (archaic)" .)